<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="../lib/react.js"></script>
  <script src="../lib/react-dom.js"></script>
  <script src="http://cdn.bootcss.com/babel-core/5.8.38/browser.min.js"></script>
</head>
<body>
  <div id="app"></div>

  <script type="text/babel">
    var arr = [
      <h1 key="1">jack</h1>,
      <h1 key="2">rose</h1>
    ]

    ReactDOM.render(
      <div>{ arr }</div>,
      document.getElementById("app")
    )
  </script>
</body>
</html>

